/*
 * Copyright (c) 2003-2010, Live Media Pty. Ltd.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification, are permitted
 * provided that the following conditions are met:
 *
 *  1. Redistributions of source code must retain the above copyright notice, this list of
 *     conditions and the following disclaimer.
 *  2. Redistributions in binary form must reproduce the above copyright notice, this list of
 *     conditions and the following disclaimer in the documentation and/or other materials
 *     provided with the distribution.
 *  3. Neither the name of Live Media nor the names of its contributors may be used to endorse
 *     or promote products derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER
 * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

package com.colony.channel;

import java.io.InputStream;
import java.io.OutputStream;

import com.argot.remote.transport.TypeEndPoint;
import com.colony.mime.MimePipe;

public class ChannelInternal
{	
	private MimePipe _pipeIn;
	private MimePipe _pipeOut;
	private int _id;
	private Channel _channel;
	private TypeEndPoint _endpoint;
	
	private InputStream _in;
	private OutputStream _out;
	
	protected ChannelInternal(InputStream in, OutputStream out)
	{
		_in = in;
		_out = out;
	}
	
	protected ChannelInternal()
	{
		_pipeIn = new MimePipe();
		_pipeOut = new MimePipe();
	}
	
	protected void setId( int id )
	{
		_id = id;
	}
	
	protected Channel getChannel()
	{
		if ( _in != null || _out != null )
		{
			return null;
		}
		
		if ( _channel == null )
		{
			_channel = new Channel( _pipeIn.inputStream(), _pipeOut.outputStream(), new ChannelIdentifier(_id)  );
		}
		return _channel;
	}
	
	protected TypeEndPoint getEndPoint()
	{
		if ( _in != null || _out != null )
		{
			_endpoint = new Channel( _in, _out, new ChannelIdentifier(_id) );
		}
		if ( _endpoint == null )
		{
			_endpoint = new Channel( _pipeOut.inputStream(), _pipeIn.outputStream(), new ChannelIdentifier(_id) );
		}
		return _endpoint;
	}
}
